<div dir="ltr"><div class="gmail_default" style="font-family:verdana,sans-serif">Dave,</div><div class="gmail_default" style="font-family:verdana,sans-serif">I used to use El Sids a lot in SHW systems with direct PV drive for the glycol circulation. I've long stopped installing SHW, but have used them in off grid hydronic heat systems as well. The electronics have failed on many of these pumps over the years. They seem particularly intolerant of higher voltages, even small ones, which if they are being driven off battery voltage, is hard to avoid. None-the-less while I really liked the El Sids, they were too expensive to have as many failures as they did. I'm familiar with March pumps as well, but they always seem to fail prematurely as well, for even more money. I was hoping there might be a suitable replacement for a somewhat less expensive alternative.</div><div class="gmail_default" style="font-family:verdana,sans-serif">Howie<br clear="all"></div><div><div dir="ltr" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><span><span><font color="#888888"><span style="color:rgb(120,63,4)"><b>Howie Michaelson<br></b></span><span style="color:rgb(0,0,255)"></span></font></span></span><span><span><span><span><font color="#888888"><span style="color:rgb(106,168,79)"><b>Sun Catcher</b></span><br><span style="color:rgb(68,68,68)"><span style="background-color:rgb(255,255,255)"><font size="2">
<span style="color:rgb(32,18,77)"><b><span></span></b></span></font></span></span></font></span><span><font color="#888888"><span style="color:rgb(68,68,68)"><span style="background-color:rgb(255,255,255)"><font size="2"><span style="color:rgb(32,18,77)"><b><span><span><span style="color:rgb(68,68,68)"><span style="background-color:rgb(255,255,255)"></span></span></span></span></b></span></font></span></span></font></span></span></span></span><span><span><font color="#888888"><span style="color:rgb(0,0,255)"><b><font size="1"><i>NABCEP Certified Solar PV Installer\u2122<br></i></font></b></span></font></span><span><span><font color="#888888"><span style="color:rgb(120,63,4)"></span></font></span></span></span><span><span><span><font color="#888888"><span style="color:rgb(120,63,4)"><b><img src="https://drive.google.com/uc?id=1MQF8aTcFNnBR59ia5JAm1DsPHCxzNkPx&export=download"><br></b></span></font></span></span><span><font color="#888888"><span style="color:rgb(0,0,255)"><b><font size="1"><i></i></font></b></span></font></span><span><font color="#888888"><span style="color:rgb(68,68,68)"><span style="background-color:rgb(255,255,255)"><font size="2"><span style="color:rgb(32,18,77)"><b><span><span><span style="color:rgb(68,68,68)"><span style="background-color:rgb(255,255,255)"><font size="2">Solar Electric Systems Sales & Service<br></font></span></span><span style="color:rgb(180,95,6)">802-272-0004</span></span></span></b></span></font></span></span></font></span></span></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Sep 15, 2020 at 10:29 AM Dave Angelini Offgrid Solar <<a href="mailto:offgridsolar@sti.net" target="_blank">offgridsolar@sti.net</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><p>Why did the El Sid fail? The one way I have seen them fail, and any pump for that matter is rain water that has (for some reason) lower than a normal PH. Below from wiki.</p>
<p><span>Normal, clean rain has a </span><strong>pH</strong><span> value of between 5.0 and 5.5, which is slightly acidic. However, when rain combines with sulfur dioxide or nitrogen oxides\u2014produced from power plants and automobiles\u2014the rain becomes much more acidic. Typical acid rain has a </span><strong>pH</strong><span> value of 4.0.</span></p>
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<pre><strong><span style="font-size:small">Dave Angelini Offgrid Solar
"we go where powerlines don't"
<a href="http://members.sti.net/offgridsolar/" target="_blank">http://members.sti.net/offgridsolar/</a>
e-mail <a href="mailto:offgridsolar@sti.net" target="_blank">offgridsolar@sti.net</a>
text 209 813 0060</span></strong></pre>
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<p>On Mon, 14 Sep 2020 23:49:35 -0400, Howie Michaelson <<a href="mailto:Howie.Michaelson@gmail.com" target="_blank">Howie.Michaelson@gmail.com</a>> wrote:</p>
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<div class="gmail_default" style="font-family:verdana,sans-serif">Hi All,</div>
<div class="gmail_default" style="font-family:verdana,sans-serif">I need to replace 3-5 El Sid pumps I'm using in a low volume hydronic heating system. Other than laing pumps, are there any recommendations for 12, 24, or 48 vDC pumps? Having magnetic drives that mate with the impeller body of the El Sids, would be a bonus.</div>
<div class="gmail_default" style="font-family:verdana,sans-serif">Thanks,</div>
<div class="gmail_default" style="font-family:verdana,sans-serif">Howie</div>
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<div dir="ltr"><span><span><span style="color:rgb(136,136,136)"><span style="color:rgb(120,63,4)"><strong>Howie Michaelson<br></strong></span><span style="color:rgb(0,0,255)"></span></span></span></span><span><span><span><span><span style="color:rgb(136,136,136)"><span style="color:rgb(106,168,79)"><strong>Sun Catcher</strong></span><br><span style="color:rgb(68,68,68)"><span style="background-color:rgb(255,255,255)"><span style="font-size:small"> <span style="color:rgb(32,18,77)"></span></span></span></span></span></span><span><span style="color:rgb(136,136,136)"><span style="color:rgb(68,68,68)"><span style="background-color:rgb(255,255,255)"><span style="font-size:small"><span style="color:rgb(32,18,77)"></span></span></span></span></span></span></span></span></span><span><span><span style="color:rgb(136,136,136)"><span style="color:rgb(0,0,255)"><strong><span style="font-size:xx-small"><em>NABCEP Certified Solar PV Installer\u2122<br></em></span></strong></span></span></span><span><span><span style="color:rgb(136,136,136)"><span style="color:rgb(120,63,4)"></span></span></span></span></span><span><span><span><span style="color:rgb(136,136,136)"><span style="color:rgb(120,63,4)"><strong><img src="https://drive.google.com/uc?id=1MQF8aTcFNnBR59ia5JAm1DsPHCxzNkPx&export=download" alt=""><br></strong></span></span></span></span><span><span style="color:rgb(136,136,136)"><span style="color:rgb(0,0,255)"></span></span></span><span><span style="color:rgb(136,136,136)"><span style="color:rgb(68,68,68)"><span style="background-color:rgb(255,255,255)"><span style="font-size:small"><span style="color:rgb(32,18,77)"><strong><span><span><span style="color:rgb(68,68,68)"><span style="background-color:rgb(255,255,255)"><span style="font-size:small">Solar Electric Systems Sales & Service<br></span></span></span><span style="color:rgb(180,95,6)">802-272-0004</span></span></span></strong></span></span></span></span></span></span></span></div>
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